Protective chin guard for helmets



FIG. 1 is a top plan view of a protective chin guard for helmets showing our new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a front elevational view thereof; and,

FIG. 6 is a perspective view thereof.

The broken lines in FIG. 1 represent conventional stitching. The helmet shown in broken lines in FIG. 6 forms no part of the claimed design. 

The ornamental design for a protective chin guard for helmets, as shown and described. 